






๐จ Stay dry, stay connected โ the leak detector that never quits!
The YoLink Water Leak Detector leverages industrial-grade LoRa technology to deliver the longest wireless range in the marketโup to ยผ mileโensuring reliable water leak detection even in WiFi-challenged areas like basements and outbuildings. With encrypted device-to-device communication, it operates independently of WiFi or internet, providing uninterrupted protection. Installation is effortless, batteries last over 5 years, and it integrates seamlessly with Alexa, IFTTT, and the YoLink Hub, making it an essential smart home safeguard for proactive professionals.







| ASIN | B07Z7QWJBP |
| Best Sellers Rank | #8,629 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Water Detectors & Alarms |
| Brand | YoLink |
| Brand Name | YoLink |
| Current Rating | 3 Microamps |
| Customer Reviews | 4.7 out of 5 stars 2,224 Reviews |
| Included Components | Valve Controller |
| Item Dimensions | 8 x 3 x 9.5 inches |
| Item Type Name | Water Leak Sensor |
| Item Weight | 0.08 Kilograms |
| Item dimensions L x W x H | 8 x 3 x 9.5 inches |
| Manufacturer | YoSmart |
| Material | Plastic |
| Material Type | Plastic |
| Model | YS1603+YS5001+YS5004+4YS7903 |
| Mounting Type | Protruding |
| Part Number | YS7903 |
| Smart Home Compatibility | Smart Home Compatible |
| Specific Uses For Product | Amateur, Inside, Professional, indoor use only |
| Style | 0dB, without hub |
| Style Name | 0dB, without hub |
| UPC | 850024791480 750258361438 |
| Unit Count | 1 Count |
| Warranty Description | 2 Years |
D**E
More Sensors, More Coverage, Less Stress
If you are running the YoLink system, buying more sensors is not a maybe it is a must. I picked up this 3 pack to cover the rest of the house and it was a no brainer. Setup took minutes, they synced right up, and now every risk area is covered. Under sinks, water heater, laundry, you name it. These things catch leaks fast and alert you within seconds through the app. Pair that with the automatic shut off and you are basically shutting down problems before they turn into expensive lessons. The range is legit too. No signal issues, no drop offs, just solid performance. At this point, if water gets loose in my house, it is going to have a bad day not me. Bottom line, if you already have the system, do not cut corners. Get the sensors and cover everything.
J**O
Nice Product
I bought this 3-pack to place under my kitchen sink, refrigerator, and water heater. Setup was incredibly easyโthe hub (sold separately/included) connected quickly, and the sensors paired in seconds. I tested one with a damp paper towel, and the notification on my phone was almost instant. The LoRa technology really does seem to have a much better range than my old Wi-Fi sensors; I have one in the far corner of the garage and it never loses connection. Highly recommend for anyone looking to prevent expensive water damage.
A**R
Simple device that does the job
Simple device that does the job. I installed them at every water source in the home. We have a large home and have not had issues with connectivity, and they have alarmed appropriately with leaks.
A**R
Great sensors for peace of mind!
The sensors work great! I have 2 water leak sensors (by the refrigerator and water heater) and 2 temperature sensors in the house (1 is in the garage). The [hone app is easy to install and easy to use. The sensors are a breeze to install as well, (using the QR code for installation is the fastest). I have mine set for phone notification as well as email.
J**S
Easy and useful
Incredibly easy to set up. The system communicates well and is very rapid to pickup leaks. Great item to have
M**D
These work well. Great range. 4 stars because this one replaced one that stopped working
I've had Yolink devices for many years. I love that they are easy to add to my hub, fantastic range and do what they are supposed to do. The app is easy and intuitive. I knocked one star off because one of my leak detectors said it had a bad battery, so I went in to replace it. Followed instructions, and it simply wouldn't be recognized by the hub or come back online. I tried several batteries and tested the voltage, but nothing would bring it back. It was a few years old, so probably out of warranty. They are so inexpensive, though, I just ordered another one to replace it. I received the new one, and it paired up no problem. I'm back in business. I took one star off because this was a replacement for the one that just stopped working and wouldn't come back online, no matter what I tried. I have many YoLink devices, and this is the only one that has done this so far, so I'm not deterred from YoLink at all.
B**T
Great addition
I bought these to extend my Yolink automatic shutoff system. Installation was quick and easy. These work fantastic and detect water almost instantly.
J**H
Saved me a lot of work!!!!
I have a lot of YoLink devices, and love the entire system. It gives me peace of mind, especially when I'm away from home. A few years ago (before I purchased my first YoLink) my HVAC froze up, and I didn't know until it stopped cooling. I added a "dumb" alarm to the pan underneath the unit, but when I tested it, I couldn't hear it from upstairs. I just had to hope that if we had an issue, we would eventually hear it going off. There was also no way to know if the battery was good or not, without testing it manually. As we started expanding our YoLink system, we decided to give their leak detector a try. I purchased 2, one to go in the pan under my HVAC unit, and one to put underneath my water heater. My water heater was not installed with a pan underneath, so I was just *hoping* that if I had a leak, it would get wet and work. Fast forward 2 years, and I had pretty much forgotten that I had them. About midnight, my phone alarmed, and it was the leak detector underneath my water heater. It turned out to be a small leak, and I got lucky that the water flowed towards the detector. It was such a small leak, and my water heater sits in a location where we don't walk close to it very often. There is ZERO doubt in my mind that if I didn't have that leak detector, that it would have leaked for days, if not longer, before it was noticed. As it was, I was able to turn off the water, and clean up the water that leaked with a single bath towel. We caught it before it did any damage to the floor, wall or trim. I love the peace of mind that comes with being notified of problems, whether it's at midnight, and especially when I'm away from home. I don't have to worry about whether batteries are good or not, since it lets you know. We added a pan under our new water heater, and of course, the leak detector lives in that pan. There is now little chance that a leak can happen that I won't know about now. Thanks YoLink!
M**L
It is US wifi not Uk
Works well once reset to Europe wifi but it would not connect with their European/UK hub without a fair amount of resetting and liaison with tech support. I was expecting this so was not a problem for me.
C**N
Excellent
Works very well and detects water, notifications are excellent
J**Y
Fantastic Protection and Easy to Use
This device, like the other ones in the YoLink family, is exceptionally easy to put into service and well-built which gives me confidence in its reliability. I've stationed these water sensors all over the house now, having bought a bunch more. I've rigged it so that sensing a water condition (drip, spill, flood, etc.) will sound an alarm in my home office, notify me and my wife on our cell phones (by way of the app), and send me an SMS text message. I plan to get YoLink's 110dB alarm unit too, but haven't yet. Every once in a while, I test the alarm system by putting a random sensor (say, the one under the kids' bathroom sink) in a small puddle on the countertop just to reassure me that all is still operational. I really like this system! Also, the door sensors are great because it helps me keep tabs on who's filching the junk food from the basement pantry! (I pretend the door sensor is there to ensure we close the insulated door...)
P**L
Eu frequency is not compatible with my hub
This is the eu version that operates on a different frequency to the us hubs. It does not connect to my hub
M**M
REALLY easy to install; great product; exactly as described. High quality.
I didn't know what to expect, but I heard this product was good. It arrived quickly, was REALLY easy to install and connect with the mobile app. Works perfectly. I have 5 installed in my condo and another 4 installed in my country cottage. You can view their functions by house, location, etc. Highly recommended. Try to wait for a sale, since they are kind of pricey, but they are certainly good.
Trustpilot
1 month ago
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